Background

Description

Format

Input

1~9的乘法口诀（倒序） 1x9=9 2x9=18 3x9=27 4x9=36 5x9=45 6x9=54 7x9=63 8x9=72 9x9=81

1x8=8 2x8=16 3x8=24 4x8=32 5x8=40 6x8=48 7x8=56 8x8=64

1x7=7 2x7=14 3x7=21 4x7=28 5x7=35 6x7=42 7x7=49

1x6=6 2x6=12 3x6=18 4x6=24 5x6=30 6x6=36

1x5=5 2x5=10 3x5=15 4x5=20 5x5=25

1x4=4 2x4=8 3x4=12 4x4=16

1x3=3 2x3=6 3x3=9

1x2=2 2x2=4

1x1=1

Output

Samples

1x9=9	2x9=18	3x9=27	4x9=36	5x9=45	6x9=54	7x9=63	8x9=72	9x9=81	

1x8=8	2x8=16	3x8=24	4x8=32	5x8=40	6x8=48	7x8=56	8x8=64	

1x7=7	2x7=14	3x7=21	4x7=28	5x7=35	6x7=42	7x7=49	

1x6=6	2x6=12	3x6=18	4x6=24	5x6=30	6x6=36	

1x5=5	2x5=10	3x5=15	4x5=20	5x5=25	

1x4=4	2x4=8	3x4=12	4x4=16	

1x3=3	2x3=6	3x3=9	

1x2=2	2x2=4	

1x1=1

Limitation

1s, 1024KiB for each test case.